Linesets, Heat Kits & Accessories

MRCOOL DIY Tool Kit — everything you need for a mini-split installation in one bag. Includes tool bag, crescent wrench set, and 3.5" hole saw with ...

MRCOOL 3.5" bi-metal hole saw with locking quick-change arbor. Designed for cutting the wall penetration needed during mini-split installation. 3.5...

MRCOOL 14" horizontal square to round adapter kit for 3.5-5 ton Signature Series package units.For: 3.5-5 ton Signature Series package units | Hori...

MRCOOL 14" horizontal square to round adapter kit for 2-3 ton Signature Series package units.For: 2-3 ton Signature Series package units | Horizont...

MRCOOL 14" downflow square to round adapter kit for 3.5-5 ton Signature Series package units.For: 3.5-5 ton Signature Series package units | Downfl...

MRCOOL 14" downflow square to round adapter kit for 2-3 ton Signature Series package units.For: 2-3 ton Signature Series package units | Downflow a...

MRCOOL 14" square to round adapter kit for 3.5-5 ton Signature Series package units.For: 3.5-5 ton (42K-60K) Signature Series package units | 14" s...

MRCOOL 14" square to round adapter kit for 2-3 ton Signature Series package units. Standard (non-directional) application. For: 2-3 ton (24K-36K) S...

MRCOOL downflow kit for Signature Series 36K-60K air handlers.For: Signature Series 36K-60K air handlers | Converts upflow to downflow | Profession...

MRCOOL downflow kit for Signature Series 18K-30K air handlers. Converts upflow air handler to downflow configuration. For: Signature Series 18K-30K...

MRCOOL TXV kit for compatible air handlers (48K-60K range).Compatible with select MRCOOL air handlers (48K-60K range) | Professional installation r...

MRCOOL TXV kit for compatible air handlers (30K-36K range).Compatible with select MRCOOL air handlers (30K-36K range) | Professional installation r...

MRCOOL TXV (thermal expansion valve) kit for compatible air handler units. Improves refrigerant metering precision for optimal system performance. ...

MRCOOL LP conversion kit for VersaPro packaged gas units.For: VersaPro package gas units | Converts NG to LP | Includes all orifices and hardware

MRCOOL LP conversion kit for Signature Series two-stage gas furnaces.For: Signature Series two-stage furnaces | Converts NG to LP | Includes all ha...

MRCOOL® Propane Conversion Kit for Signature Series Single Stage Gas Furnace. Converts compatible MRCOOL Signature Series single-stage gas furnaces...

24k & 36k BTU MRCOOL Ductless Split System Condenser Wall Mounting Kit. Designed for secure outdoor wall installation of compatible MRCOOL mini...

Condenser Wall Mounting Kit for 9k to 18k BTU MRCOOL Ductless Split System. Designed for secure outdoor wall installation of compatible MRCOOL mini...

The MRCOOL DIY Coupler Kit (DIYCOUPLER-3858K75) extends a DIY lineset run with two coupler sets and 75ft of communication wire. For 24K and 36K sys...

50ft 3/8" x 5/8" copper lineset for MRCOOL Olympus 24K indoor units.Length: 50 ft | Liquid: 3/8" | Suction: 5/8" | R-410A compatible

50ft 1/4" x 1/2" copper lineset for MRCOOL Olympus 18K indoor units.Length: 50 ft | Liquid: 1/4" | Suction: 1/2" | R-410A compatible

50ft 1/4" x 3/8" copper lineset for MRCOOL Olympus 9K & 12K indoor units.Length: 50 ft | Liquid: 1/4" | Suction: 3/8" | R-410A compatible

25ft 3/8" x 5/8" copper lineset with wire for MRCOOL Olympus 24K indoor units.Length: 25 ft | Liquid: 3/8" | Suction: 5/8" | Includes wire | R-410A...

25ft 1/4" x 1/2" copper lineset with wire for MRCOOL Olympus 18K indoor units.Length: 25 ft | Liquid: 1/4" | Suction: 1/2" | Includes wire | R-410A...